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Transcriptome analysis aimed to elucidate pathophysiological mechanism of inherited arrhythmias

Research Project

Project/Area Number 19K17581
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53020:Cardiology-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Sonoda Keiko  国立研究開発法人国立循環器病研究センター, メディカルゲノムセンター, 上級研究員 (90824417)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords遺伝性不整脈 / リード抜去 / FFPE / Brugada症候群 / RNAシークエンス / トランスクリプトーム解析 / RNAシークエンス / FFPE検体
Outline of Research at the Start

病因となる遺伝子異常が同定されない遺伝性不整脈患者に対し、心臓デバイスの抜去リード付着心筋や、ホルマリン固定パラフィン包埋検体など、今まで解析されていなかった心筋検体を用いてRNAシークエンスを行い、DNAの転写からタンパク発現までの過程の異常を調べることにより、不整脈の原因を解明し、治療に結び付ける。

Outline of Final Research Achievements

Myocardial specimens of extraction leads had better quality than autopsy specimens, while our FFPE specimens were highly degraded and difficult to RNA-Seq. RNA-Seq of 2 BrS cases (1: extraction lead, 2: surgery) and 2 non-BrS cases (1: HCM extraction lead, 1: commercial right ventricular RNA) was performed. We analyzed the results and public RNA-Seq data of 2 normal cases together. The clustering analysis showed that the public data and our data were separated, indicating a large influence of the RNA-Seq method. Differential gene expression analysis comparing 2 BrS cases vs. 4 non-BrS cases showed that ZFP57 was decreased in the BrS group. Enrichment analysis using the top 150 ranked differential expressed genes suggested some abnormality related to cardiovascular development.

Academic Significance and Societal Importance of the Research Achievements

今回のRNA-SeqではBrS症例の数不足のため正確性に欠ける結果ではあったものの、心血管の発達に関連した何らかの異常がBrSに関連している可能性が示唆された。BrSは遺伝性不整脈疾患でありながら遺伝子変異同定率が20%と低く、いまだに原因が明らかになっていない。本研究の成果は疾患の原因を明らかにする糸口となりうる。リード抜去付着心筋サンプルをさらに集積することで、より正確な結果が得られる可能性が高い。よって、今後はさらに症例を蓄積し、研究を発展させていく予定である。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2022 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (3 results) (of which Int'l Joint Research: 2 results) Funded Workshop (1 results)

  • [Journal Article] Association Between Deleterious SCN5A Variants and Ventricular Septal Defect in Young Patients With Brugada Syndrome2022

    • Author(s)
      Suzuki Keisuke、Sonoda Keiko、Aoki Hisaaki、Nakamura Yuko、Watanabe Seiichi、Yoshida Yoko、Hoshino Kenji、Ozawa Junichi、Imamura Tomohiko、Aiba Takeshi、Kato Koichi、Makiyama Takeru、Kusano Kengo、Horie Minoru、Ohno Seiko
    • Journal Title

      JACC: Clinical Electrophysiology

      Volume: 8 Issue: 3 Pages: 297-305

    • DOI

      10.1016/j.jacep.2022.01.007

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of cascade screening for catecholaminergic polymorphic ventricular tachycardia type 12022

    • Author(s)
      Shimamoto K, Ohno S, Kato K, Takayama K, Sonoda K, Fukuyama M, Makiyama T, Okamura S, Asakura K, Imanishi N, Kato Y, Sakaguchi H, Kamakura T, Wada M, Yamagata K, Ishibashi K, Inoue Y, Miyamoto K, Nagase S, Kusano K, Horie M, Aiba T.
    • Journal Title

      Heart

      Volume: - Issue: 11 Pages: 2021-320220

    • DOI

      10.1136/heartjnl-2021-320220

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] LMNA Missense Mutation Causes Nonsense-Mediated mRNA Decay and Severe Dilated Cardiomyopathy2020

    • Author(s)
      Kato Koichi、Ohno Seiko、Sonoda Keiko、Fukuyama Megumi、Makiyama Takeru、Ozawa Tomoya、Horie Minoru
    • Journal Title

      Circulation: Genomic and Precision Medicine

      Volume: 13 Issue: 5 Pages: 435-443

    • DOI

      10.1161/circgen.119.002853

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SCN5A mutation identified in a patient with short-coupled variant of torsades de pointes2020

    • Author(s)
      Sonoda Keiko、Ohno Seiko、Shimizu Yukiko、Kaitani Kazuaki、Makiyama Takeru、Nakagawa Yoshihisa、Horie Minoru
    • Journal Title

      Pacing and Clinical Electrophysiology

      Volume: - Issue: 5 Pages: 456-461

    • DOI

      10.1111/pace.13924

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Long-read sequence confirmed a large deletion of MYH6 and MYH7 in a family with atrial septal defect2020

    • Author(s)
      Keiko Sonoda, Seiko Ohno, Minoru Horie
    • Organizer
      ESC Congress 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Copy Number Variation of SCN5A in Sick Sinus Syndrome2020

    • Author(s)
      Keiko Sonoda, Hisaaki Aoki, Koichiro Takayama, Wang Qi, Dimitar P Zankov, Yoshihide Nakamura, Minoru Horie, Seiko Ohno
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] De novo RYR2 mutations are associated with severe phenotype of CPVT more strongly than inherited ones2019

    • Author(s)
      Keiko Sonoda, Tetsuhisa Hattori, Minoru Horie, Seiko Ohno
    • Organizer
      The American Society of Human Genetics 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Funded Workshop] The American Society of Human Genetics 20192019

    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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